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Negro, Río, river, Uruguay and Brazil

(Encyclopedia)Negro, Río rēˈō nāˈgrō [key], principal river of Uruguay, c.500 mi (800 km) long, rising in S Brazil and flowing SW across central Uruguay to the Uruguay River. It traverses a sheep-raising reg...

pole, in electricity and magnetism

(Encyclopedia)pole, in electricity and magnetism, point where electric or magnetic force appears to be concentrated. A single electric charge located at a point is sometimes referred to as an electric monopole. An ...

San Marcos, University of

(Encyclopedia)San Marcos, University of, at Lima, Peru; the first university in South America; founded 1551 by the Spanish king Charles I (Holy Roman Emperor Charles V) and recognized by papal bull in 1571; closed ...

strategy and tactics

(Encyclopedia)strategy and tactics, in warfare, related terms referring, respectively, to large-scale and small-scale planning to achieve military success. Strategy may be defined as the general scheme of the condu...

Izard, Ralph

(Encyclopedia)Izard, Ralph ĭzˈərd [key], 1742–1804, American diplomat and legislator, b. near Charleston, S.C. After an education in England, he returned (1764) to South Carolina but in 1771 again went to Lond...

International Union for the Conservation of Nature and Natural Resources

(Encyclopedia)International Union for the Conservation of Nature and Natural Resources (IUCN), formerly World Conservation Union, international organization founded in 1948 to encourage the preservation of wildlife...

Persad-Bissessar, Kamla

(Encyclopedia)Persad-Bissessar, Kamla, 1952—, Trinidadian political leader. A lawyer of South Asian descent and a member of the United National Congress (UNC), she was appointed to Trinidad and Tobago's senate in...

Mott Foundation

(Encyclopedia)Mott Foundation, philanthropic trust created (1926) by automobile executive Charles Stewart Mott (1875–1973) to support programs dealing with selected urban problems. The foundation originally conce...

Flathead, river, Canada and the United States

(Encyclopedia)Flathead flătˈhĕd [key], river, c.240 mi (390 km) long, rising as the North Fork, in SE British Columbia, Canada, and flowing generally SE through NW Montana, to Coram, where it is joined by the Mi...

Plessy v. Ferguson

(Encyclopedia)Plessy v. Ferguson, case decided by the U.S. Supreme Court in 1896. The court upheld an 1890 Louisiana statute mandating racially segregated but equal railroad carriages, ruling that the equal protect...